Amberlyst-15 catalysed sonochemical synthesis of 2-amino-4,6-disubstituted nicotinonitrile derivatives and their biological evaluation
作者:Chandra Sekhar Challa、Naresh Kumar Katari、Varadacharyulu Nallanchakravarthula、Devanna Nayakanti、Ravikumar Kapavarapu、Manojit Pal
DOI:10.1016/j.molstruc.2021.130541
日期:2021.9
The 2-amino nicotinonitrile framework has been explored first time for the identification of potential inhibitors of SIRT1. Thus a series of targeted 2-amino-4,6-disubstituted nicotinonitrile derivatives were synthesized by employing an ultrasound assisted MCR of ketones, aldehydes, malononitrile and ammonium acetate. The MCR was carried out in the presence of Amberlyst-15 in MeCN under mild conditions
首次探索了2-氨基烟腈框架,以鉴定SIRT1的潜在抑制剂。因此,通过使用酮,醛,丙二腈和乙酸铵的超声辅助MCR,合成了一系列靶向的2-氨基-4,6-二取代烟腈衍生物。在温和的条件下在MeCN中Amberlyst-15的存在下进行MCR,以高收率得到所需的产物。在没有空气的情况下,反应效率较低,而Amberlyst-15,超声,空气和MeCN的组合对于该MCR的成功至关重要。在体外测试SIRT1抑制潜能时,几种合成的化合物表现出良好的活性,其中5c,5e和5n被确定为最有效的(IC 50〜3μM)和比已知的抑制剂的烟酰胺(IC更好50〜109微米)。在计算机对接研究中,这三种化合物显示出比烟酰胺更好的结合能(> 100 kcal / mol)和更高的相互作用数(结合能为-88.38 kcal / mol)。烟腈衍生物的氨基(–NH 2)和氰基(–CN)分别与ASN346和HIS363残基形成H键,烟酰胺通过其酰胺(–CONH